https://sims4studio.com/thread/18063/fix-arms-casparts

Ever have that moment where you just finished your mesh and it's ready for testing? And then when you test it, the arms just completely don't work? And once you start looking for fixes you can't seem to find them? here's a picture!:

Well, here's a tutorial on what to do when the tips below don't work at all!

sims4studio.com/thread/5710/arms-stuck-sides-cas?page=1&scrollTo=53213sims4studio.com/post/89693/thread

Again, I would strongly advice looking at the 2 links above, especially if you are 99.9% sure you did the cut numbers right and actually know how to do it (unlike me when I started making this dress :P)

Why is it doing this?

The sims 4 uses cut numbers. When you start making your own meshes you will notice everyone talking about it, although if you haven't yet figured these out, here's a great tutorial: sims4studio.com/thread/13120/cut-numbers-easy-explanation

Now, if you come from ts3, you will know what "slots" are on CASparts. If you're an object creator then the words slots will also ring a bell. If you're not familiar with slots, the best way to explain it is, notice how your sim would grab a plate and the plate is snapped onto the hand? That is one of these slots. Or, how when you place a flower onto a table, that it snaps onto the table? That's also a slot! Although, ts4 has waaay more slots for all sorts of animations, if not, advanced stuff. One being, a few slots that make it so the arms are resting next to the body!

Every single Geometry has a small set of slots. For body meshes it's very common that there's 2 geometries for the legs, and then 1 or 2 for the body. If you didn't apply the cut numbers correctly, S4Studio will think that the geometry for the legs are now the body! Which of course is not good at all!

**So how would I go on fix this?**1. Open up S4Studio and click 'create 3D Mesh'.

  1. Find the item you cloned again. In my case it was this dress:

  1. Save the package, just call it "Delete later" or "SlotRayFix" or anything that works for you in that context.

  2. Go to the meshes tab and export the mesh. Also call this "Delete later" or something like that.

  1. Open the cloned mesh you used (and we just exported) in blender

  2. Also, open your actual mesh in blender. This is my setup now: